Driving mechanism for valves and other devices



P. P. DEAN.

Patented Dec. 16,1919.

3 SHEETS-SHEET l.

DRIVING MECHANISM FOR VALVES AND UTHER'DEV'ICES.

APPL-lemon mso sur. xo. m1. 1,325,005.

P. P. DEAN.

nmvmc MEcHAmsM fon vALvfs Ann OTHER oEvlcEs.

APPLICATION FILE() SEPT. l0. |911.

1,325,005. Patented Dec.16,1919.

l 3 SHEETS-SHEET 2.

P. P. DEAN.

DRIVING MECHANISM ron vALvEs AND oHEa oEvrcEs.

APPLICATION FILED SEPT. I0. |911.

Patented De.16,1919..

.STATES PATENT OFFICE.

' f f* I @new weer i.

rnrvrnenncnnnrsn roitvnnvns .um orimi nnvIcEs.

1,325.005I i renew-2"? ftfflrnff fleteetedDC-e. 1919. ernennen-inne. seutember; 1o. 1911..' mm mi. ummm* Be it known thatLlETEB-(npmnisubr @F1 .51; and; dipf f in... .I ject of the Kingip-.Englandyreslflm ai' 1g. Gis-.adm .m'ofone cncuitarrange'- New York-city, mthe county'of New Ork-mentior thedrivmgi n'iotor;i tri-'h f.

6 and State ofaNewYprkHllave invenldnw. Referrlg'toi-Fi .i11'iand2, =ar'id iirst to and useful Improvements' .in DrivmgMecliar the-latter ligure', t .e Imechanism#includes a eo nism for Valves and yother Devir/,esci .which drlven shaftl, a driving member 2 V(Figa) the followin i's a,full,gclear, conc1se,and exa planetaryspeed reducing geargrifor con. act description, `reference be1ug,had .to the necting the same, and a-'relatively-small high '10 accompan mgdrawingjormingillperil 0f.; Speed mOtQr 4"(fF ig.: 1)?1=operatively 'con- 25 the drving .motor o this speci catiop. c.; ,i qu: i netd t0 the drivingl member Qsthrougha 65 This invention'relates to driving mechworm wheel 2*'and'vvorm 5.' y'These partsare nism forA valves and other devioes. Yall mounted i`n a casing'li'ndjtlie 'motor A4* In my priorfatentNo. 1,2115,574,' granted nils connectedI .in an, extensionfgof fthe said Nov. r6, 1917,f,there discloseda driving-s casing. 1. n

mechanism 0f Suehff-charwtenincludmg a The driven shaft 1 isfmounied ins-bear. ,o normally restrained member? releasable to ing 9 (Fig. I2) :in one' wallof casing? and effect substantially instantaneousrelease of `has an extension 1'* uponvwhich the driving the driven. member from,the driving-merri-f @member -is rotatably mounted, said exten'.

bei', and the present invention .hasuimon s1on-,pro]ectingthrough andfhavin abalef.

its objects to provide .improyedcontro .-mg 10 .inthe opposite wall of'sai' casingfqg means forwsaid restrainabie member, ,m The worm `wheely 2*:3is'xed-'toithe drivingV Another Oblect S--Q Provide IIDPPOYG member 2 *while ythe worm`=5fis fixed tofu' limit means whereb .thepovvemsuppllled'ton Sliaftll having Suitable Lbearin! z12 and 1'3 gauche mechanism will (Figc` 1) in fop site walls ogsthe caslng be terminated. substantially simultaneously yandconnected t rough a1' suitable coupling 30 u ith thereleaseo saidnormallyrestrained 14 totheshaft of the motorrrffhe* planetary member. yy.; 1, a gear-'3 includes apinionBl'xedlto the drivi: Another lobject is to provide limitmeans :i lng member :2,.aplurality of 'inion sl"'1r driven member incident. to resetting ofsaid .slia'ft 1 and an internal y toothed ring' 3, the' 35 means, for a'purpose vhereinafter described.. vplnlons'3" beihgarranged Ebetween and Vin Other obf'ects and, advantages of the 1nlmesh authv the pinion-3* andi toothed rin 13.,-

vention wil hereinafter ifappean-and it. is to The toothed rrin tis revolubly inou'n `in be understood thatrertain features of the a bearing =16( ig.' 2).;nrovidedHvvithndzhe invention may be advantageouslyemployed casing and'formsthe aforesaid restrainable 90 in other relations. p i .i t f and releasable member. 4And as will begs.

The accompanying drawing illustrates one parent, restraint 4 ofthe ring will 4render embodiment of the invention ,and the s ame planetary gear efectiveasa driving connec-` 40 will now be described,. it .bein understood tion betweenl the drivin member 2 andv that the embodiment illustrate is sllsceptidriven shaft 1 whereas re ease'ofsaid ring 9D Ible of various modifications Without departwill allowv rota Flay thereof .fori release ing from the scope oftlefappended. claims. ofthe driven sha t romthe driving member. In the drawin f -In therespeetsabove notedgv'the d rivilig 46 Figure 1 isa iorizoxital sectional vievv: of mechanism is substantiallyr ithes'ame asthat the mechanism Ataken online I1---1 Iof Fig. 2. shown in my prior-application, aor'esaid. '100 Fig. 2, isaI sectional vievmtakensubstan- `The means employed 'in this instance to tially on line 2-,2,of E ig. 1; f r y restrain the rings?,c -of the planetaryfgear,

Fig. 3 is a top pian view of Fig. 1,excluyincludes two plugs ,18 and 19 (Fig. 2) recip- 50 sive of the driving motor and Withya part rocably mounted lin an intermediate wall 2O of the casing broken away; v y 4 i of casing 7. .These plugs are'arranged side les Fig. 4 is a right hand side elevation of byside directly above the ring 3f and 's'ad Fig. 11 exclusive ofthe driving'motor and rin is provided with peri lieral4 grooves 21 with the casing cover removed; v Y an 22 to respectively receive said plugs and .of sai for rotation ingfsuch a direction,'.wliereas;-.the

block 23 will uponaslightly nless; than A,one revolution ofV said ring, abut=tl1e lug 18 to' again arrest said ring.;V Converse y, assumm o thring .in a clockwisedirectionpretraction of theplu 18 will -free'saxd ring for rota#y tion in suc 1 diretion,'whereas-the.block 21 will u on slightlydessthan onenrevolution d ring abuhplug 19 to again-...arrest the said ring. i

Thus assumingprojection yof both plugs into their respective grooves the planetary gear will operatively .connect the driven shaft tothe driving member forfoperation of the former by the latter in,.eith`er-:direc- Y?) matter set forth. `The-'lever"3G (Fig. 2) has j restraining the ringhe ywithdrawn#it:will y release lthe f driven shaftufrom -the driving -1 member and permit the ring -tore'volveaunti 1 checked by the other4 plug. Thenqif :the drive be reversed without rein'sertion ofthe withdrawn plug, the ringcwillf be permittedA` unrestrained rotation until thevlast actingi block abutsvthe oppositc'sideof the inserte: plug thereby eifectngreconnection' ofthe driven shaft with the drivin 'member and| with a hammer blow -to the er.i .Hence assumin drive of a valve, th mechanismv described'providesfoiquick rel se thereof when seated and for unseating'o the same with a hammer blow and as Wi be 'described, means are provided fora ornati- Vrally and selectivel withdrawing the lugs at given limits, an terminating the power suly to the driving motor. he limit means forv withdrawing the plu includes an operating lever (Fig. 2 -gr the plu 18 and an operating lever 31 igs. 1 and 2 for the plug 19, 'both of said levers being fulcrumed upon a shaft 32 extending through the casing 7, and supported in opposite walls of the latter. T ese levers, as will hereinafter appear, I Ahave lost motion connections with the lugs and are res ectively lprovided with rol ers 33 and 34' to he res ectivel engaged by the cams 35 and 36 o a trave in device 37 (Figs. 1 and 5) connected with te driven shaftl. Also, as will appear, the cams While moving rectilnearly with the traveling device, are -subas todo r Said ration ofrthemotor tending torotate x mangos 'lever a1 (Fig. 1) has a bifrcated extension ,31? and on the shaft32 is mounted I aV bell crank" lever 38 having a lateral lug 38-A .projecting into such-'bifurcated portion of lever 31 and alsohaving a forked extremityg operatively engaging theplygrlf f The thereof -in .'.th'e bi furcated porti'cn -cf "lever posed betweenafpart of the'casing and a lug '31 on lever 31 Eto ba'sthe latter to theepcsltion show nin`l1`ig. 1;" Infothe'rlwcrds, the spi'ing 3 9 bi ase's the 'levei` .'31" in' a direction to projet-t the -roller into the path ofthe traveling device. and to force the plug-down-V wardly into f 'engagement "nitllj'i the ring'.

vThu's* v\.'hcn the lever'f31 5 is actuated bys the' 'travelm r"device it first" takes yup the playy be` tweenV t 1e same and 'the'lever 38' and then lifts the-plug toclearthe sheenend of the block 24e for 'release of thering, 'whereupon the play-between levers 31 and-38 permits a limited upward movement ofthe latter inde- )emlently 'of the Vformerfora p'trrpo'se heieasimilar bifurcateilgportonfBO* and un associated bell 4'crank lever '40 o ieratively con-A nected to plugL '18"antl *provi edjavithf a lateral vlug 1:40, roje'ctii'ig` into the bifurcated 'portion 30"; lso: lever 30'is'11irov`ided with a spring 41 .corresponding"toispring" r 3,9 to bias said lever in the same manner and for thesanle purposes as in the 'cas of level` 31. Further, the lever 30 is 'provided'with an elongated threadedv spindle 42 (Fig. 2) for its roller- 33, said spindle `beingre'vo'lubly lcarried by and betweexfsaid lever' and a bracket arm 30" projecting freni the hub of 'said lever. The roller 33 is'fthr'eaded on spindle 42 and thus as will appear,l is adjustable relatively to the roller 34 for varymg the range' c'f. operation Vof the' driven shaft, said roller 33 being lockable in adjusted positionby a set screw 43 adapted to 'be secured against turning by a wire 44.

The cams 35 and 36 (Figs. 1 and 5) are slidingly mounted upona square shaft 45 and are confined between arms 37 and 37h of tenaces adjustment relative thereto and then rene gaged therewith.` This adjustment, as will appear, also provides for variation of the range of operation of the driven member and i for retaining the cams in the desired intereI locked relation the-travelin 'devicejs pro-1- vided with-a set screw 47 a aptedto be Seti' into the peripheral groove in Vthe hubftihI f" Thus, as. will beapparent, the screw :shaft 46 providesl for movement-fof the device 137i to push the cams along the*squarekshafti45'=' while the latter shaft provides for rotation of the cams during their -rectilinearmovement Both shafts. 45 land 462' have bearings-f inf'Jf opposite walls of the casmgfand the -upperf extremities of the two shats:pm]'ect through the `casing as shown inFig'. 3, and" as shown in the same ligure, theshat-45" has fixed thereto a gear 50, While the Shaft 46 has liXed thereto agear 51, the fol'lnelw` The meansoontrollin "the power suppl to the motor, as best' yilv ustrated in Fig.A comprises 'two pairs'if 'stationary contacts 60-61 and 62#63 abridgi g c'ont'acifG-l for 'the :former a- 'bri'd icontact". 65

stationayconsame #againsttsaid'.platea und* iti' t path of its respective coperating ontactfthe fbe'a'r-. being'iifixe'd;

'ing plates of all o`f l'said contacts to an 'insulating iblock-5691"The insulating block- 69 isnionnt-ed in lll ber provided at I thesid f'cslng andllf'isV :provided vit lfbin'dmg posts for all necessary connections'of. the contacts. Thebridgingl contctsit-'fand 65, on' the 1the upright armso tlie'be fc'rank levers 40 to be driven intermittently by the'driven'and-l vvshili asfbeo'rrdsclfibedfdirectly shaft 1 and the latter to be drivencontinu-i ously by said driven Ashaft.- Morespeci# 'i engage'ttli'e plugs 5118*' afnjdf 19A respectively Asbest "shown in* cally, the gear 51, is driven bym, pimon52"'"fbi-'ging; cnmctsrcomppises'smlcylinder Se;

(Figs. 2 and 3) 4fixed to theextension of" the driven shaft 1, through `themediuln offv` an idler 53 mounted upon a stud 54 fixed-to the wall of the casing while the' ar'50 is driven'by the same pinion throu the medium of an interrupted gea-r 5'5r xedfto theby-a'n insulated bolt 70 toY the extrembridges its respective stationary contacts in the normal' position ptitssupporting lever, 1'.. e., 'thefposition of "saidflever 'insuring' dehub of said idler and meshing-withmsecendff.: fpressionf-the fplug.

idler 56 which meshes-with 111550.

as before stated, the ietvfs inftfi continuouslydriven .b 'the determined by the re ati've sinesiftlie 51 and pinion 52iwhile the shaft 45 ita-frye? ing the cams will only be operatedintermlttently, or in other wordskin a Stepby step manner, each step of rotation beingdependent upon-a given angular movement or a given .number of revolutions of the shaftx 1 according to the gear ratio. As shown the interrupted gear hasbut two teeth and the idler 53 is of greater diameter than pinion 52 whereby shaft 45 will makeonly a artial revolution to a number of revolutions of the driven sha'ft.

Hence in operation' the traveling device b its rectilinear movement, provldes for aiining the cams with their 4respective rollers upon given operations of the `driven shaft, while the rotation o the cams when so alined with their rollers rovides for actuation of the levers .carrym said rollers, and hence for withdrawal'of-t le correspond, ing plugs. Obviously, therefore, the mter' mlttent -rotation of the cams enables the mechanism to be readily designed for insuring effective alinement of the cams with their rollers prior to their rotation thereagainst, while the aforesaid adjustments of the roller 33 and cam 36 provide for variation of thelimits at which the plugs are withdrawn and through a considerable range.

ar fried thereby beneath free for movement l p g A etlerplugfis fretracted as abovedescribedfitsrespective actuating 1ever also Itends to withdraw-fthe 'contact 'car- -fromtengagementwith its respective stationary contacts 'but the latter are arranged to maintain circuit throughout such movement of tl1e lever.-0n the other hand, each movablecontact is arran ed to be disengaged from itsfres ective stationary contacts upon a sli htl addli) of its respective everand the aforesaid peaked surfaces of the blocks;23 und 24 carried by the ring 3 provide for-such'additional movement of the levers. For example, assuming a tendency 'of ,the ring 3 to rotate in a counter-clockwise direction Vand further assuming retract-ion ofthe plug 19, Aas above described, the block 24 of said ring will pass beneath said plu and through the medium of its peaked sur 38.v Again assumin a tendency 3 to rotate in a. ocltwsedirection, an( further assuming retractionV of the plu ,18, said ring will rotate to force the bloc 23 said plug, and through'the medium of its peaked surface, lift the same for additional movement of its bell crank lever. And since the lost motion connection between each pair of levers 384-31a-nd 40-30, leaves the first mentioned lever of each pair independently of the other follwin 4retraction of the plugs by the traveling evice, the further movement it of its respective lever andf'as'shown in f Fig. 1, each of these contacts engages and tional movement ace liftA thev same for additional movement of bell crank lever of the ring contact carried thereby from their respec- 'af'tuationofthemov le contacts for tive contacts will be unopposedisavebythe'f friction of the parts. -Also `since the ring 3?.I when released willaocellerate= very rapidly the eakedblocks of .said rin 4willfefi'ect quic actuation i'of ,the lugsian hence'quick 'lthiiilififli contacts 78, 87 and 88 by conductors 89 to and through contacts 62, 65 and 63 of the other flimitl switchV and thence through the motor field winding to line L as already describedi www 1 z :ai Thus the'ione' limit switch serves to `interfrupt thesmotoncircu'it when the motoroperdlsenmates inwaz'rigiven 'i direction while-'the v'otherI gagl-ment'jrom, the stationllty. 2G0ntacts, iandy-servesetol interrupt thefmotor circuit when wit `the; ,levers -38', andr() designedas f illuss said pins liplvotally mounted-upon i al,-

bracket 72 within'the casing -andbiased to. latching position b a spring-{1&- Anddzhe. arrangement is, suc that openingof eitherswitch engages ,its res etive A pinilwith; said-i pawl for retentionlof t eiactuated'sw-ltchfin open position whereas as to release theretainedlswitch when sub-v jected to the bias of ,itsreturn springilor 41, following withdrawal of. the traveling device from thepath.,of itsirespectivelever by reverse operation of .thedrivlngmotor i i Refer-rin to-Fig. 6, .thesame Vdiagrammatically s ows'the motor-..4 as having an armature A and series field winding F and further shows schematicallymthe limit switches ,above described-anda drum -controller 75 for completing themotor',- circuit through the limit switches and reversing the flow of current through the motorarmature Both limit switches are included in series with the motor, one beinglincluded in the motor connections for iforward operation and the other being included in the motor connections for reverse Ioperation. More specifiicall vwith the drum controller in the position il ustrated .circuit is traceable from the line L to and through contacts 76, 7and `78 by conductor 79,V through-armature A from left to right by conductor 80 tocand through contacts 81, 82 and 83 b .conductor 84 through contacts 60, .64 an 61 Vof one limit switch b conductor 85 to and throu hl the motor fiel windin Fto line On t 1eA other hand withv the rum controller in its other position circuit is :traceable from line L to and throu h contacts 76,- 86 and 81 by conductor 80 tlrough the motor armature from right to left by conductor 79 to and the yrniwlis so formed -rthe motonioperates in a reversedirection'and ,fthe inechanism fdescribed" provides 4for a iquick'j operationinfY each limit switch for :.quick; interruption ofzthe motor circuit sub' stantially simultaneously'iwith the release `of the ringft'{or-interruption'of the driving connectlonsffAccordingly, rotation of the -fringftand restablishment of the driving -ldescribedf willf be dependent'v upon'the mo- -fr'nentum'y of ".thomotor.,ereveal thereof, and .has will be understood'one or. the other of the elumtf-switchesf is alwaysy closed whereby the iruotoraft'er fbeing' arrestedv may be started nein a reversadirectiomi Furthegit-will be `Iobserved that the limit mechanism-@described provides for resetting :of therwithdrawniplug and reclosure of the opened switchnupbnca'relatively slight rel --tie rsebperti on 4ofthe f 4traveling deviccf of isald .mechanls .fwhe'r'eby the driven device connectionbyrotzition of said ring as above fmay berevers, aliany pointI within a wide y', rangelbetween?lim1t.s,=iwhich' is frequently quite` desirable. ff

F' WhatI claimas new n by Letters Patent is:

,.zfl. Int: combination, driving and driven tmembers, a'driving connection therebetween and desire to secure 'including fpart requiring restraint to render the same elective, 'a restraining element for said part and mechanical means subjecting said-,element to positive actuationI by one of said members under given conditions to thereby release said driven member from said driving'member. v 2. Ini combination, driving and driven members, a driving connection therebetween including a part requiring restraint to render the saine eii'ective,.a restraining element for' said part and mechanical limit means to actuate said .element for release of `said members, including a cam connected to 4and positively operable by one of said members and a positive actuating member for said element arranged in the path of`said cam. I3. In,V combination, driving and ,driven members, a driving connection therebetween llb for said part havin a. pro'ecting operating member connected t ereto or positive oper-l i ation thereof, a travelin device having a rotatable cam to be aline thereby with said operating member and then rotated thereagainst for actuation of said element and means providing for drive of said traveling motor, a driven member, a driving connec tion therebetween including a part subject to reverse opera-tions by said motor according to the direction of operation of the latter, said part being restrainabl'e and releasable to render said connection effective and in` effective, restraining elements for said part operable selectively for release of the saine according to the direction of operation of said motor, said part acting when so released to further operate the selected element and reverse limit switches for said motor operable selectively by said elements when so operated' by said part.

15. In combination, a reversible driving motor, a driven member, a driving connection therebetween includin a part subject' to reverse operations by said motor according to the direction of operation of 'the latter, said part being restrainable and releasable to render said connection effective and \,inefl`ective,restraining elements for said part operable selectively for release of the same according to the direction of operation of said motor, said part acting when so released to further operate the selected element and reverse limit switches for said motor operable selectively by said elements when so operated by said party and means subjecting said elements to the aforesaid selective operation thereof at given limits of said driven member.

16. In combination, a reversible driving member, a driven member, a driving connection therebetween controllable for substantially instantaneous release of said driven member from said motor`, reverse limit switches for said motor and means for effecting such release of said driven member at'given limits thereof and also selective operation of said limit switches Without interference with reverse operation of Said motor and reverse drive of said member, said means also providing for control of said connection and limitswitelies whereby the said motor and ,driven member may be reversed between limits.

17. In combination, a' reversible driving motor, a member to be driven thereby in reverse directions, a driving connection therebetween including a part restrainable and releasable to respectively render said connection effective and ineffective, means to restrain said part for reverse operations of said driven member between given limits art at such limits said ling reversals o the when between limits means further ena drive of said member` and reverse limit switches for said motor automatically and selectively controlled by certain of t e aforesaid elements for termination ofthe power supply to said motor" f upon release of said part and for permitd ting reversals of said motor between 18. In combination, a reversible driving motor, a member to be driven thereby in reverse directions, a driving connection therebetween including a part subject to reverse operations by said motor according to the direction of operation of the latter, said part bein restrainable and releasable to respective y render said connection effective and ineffective and a plurality of separately operable restraining elements for said'part.

19. In combination, a reversible driving motor, a member to be driven thereby in reverse directions, a driving connection therebetween including a part subject to reverse operations by said motor according to the direction of operation'of the latter, said part being restrainable and releasable to respectively render said connection effective and ineffective, a plurality of` separately o erable restraining elements for said part' an means for effectin selective withdrawal of said elements rom restrainin relation with said part at given limits o said driven member.

20. In combination, a reversible driving motor, amember to be driven thereby in reverse directions, a driving connection "therebetween including a rotatable part subject to`reverse o erations by said motor and restrainable an releasable to render said connectionv e'ective and ineffective and a plurality of separately operable restraining elements for said part, said part having a rotary play relative to each of said elements.

21. In combination, motor, ajmember to reverse directions, a therebetween including arotatable part subject to reverse operations by said motor and restrainable and releasable to nder said connection effective and ineffective and :L pluralityl of separately operable restraining elements for said a reversible drivingy be driven thereby 1n drivin'nr connection part, said part having a .rotary play relative to each of saidclements, and being restrainiable by said v"elements jointly in a rotary position from which it is movable in o posite directions upon selective withdraws. of said elements;

22. In combination, a reversible driving motor, a member to be driven thereby in everse directions, a driving connection erebetween including a rotary part subject to reverse o erations by said motor, separately operab e restraining elementsv for said rota part, said part having eA rotary lay relative to each and being restrainable y the same jointly in a position from which itis movable in opposite directions upon release by said elements selectively and means for selectively operating said elements for release of said part at given limits of said driven member. f 'In witness whereof, I have hereunto subscribed my name. 4

PETER P. DEAN. 

